19908656

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1523}}^1$

素因数の和:1593

約数の個数: 40

約数和(自身を含む): 41574720

約数和(自身を除く): 21666064

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 152, 172, 304, 344, 688, 817, 1523, 1634, 3046, 3268, 6092, 6536, 12184, 13072, 24368, 28937, 57874, 65489, 115748, 130978, 231496, 261956, 462992, 523912, 1047824, 1244291, 2488582, 4977164, 9954328, 19908656]

約数ペア:

[(1, 19908656), (2, 9954328), (4, 4977164), (8, 2488582), (16, 1244291), (19, 1047824), (38, 523912), (43, 462992), (76, 261956), (86, 231496), (152, 130978), (172, 115748), (304, 65489), (344, 57874), (688, 28937), (817, 24368), (1523, 13072), (1634, 12184), (3046, 6536), (3268, 6092)]